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Finding the Fourth Proportional to 14,567.99, 20,104.88 and 8,903.81

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Solution

The fourth proportional to 14,567.99, 20,104.88 and 8,903.81 is: 12,287.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,567.99 : 20,104.88 = 8,903.81 : x
  2. Step 2: Convert to fraction form
    14,567.99/20,104.88 = 8,903.81/x
  3. Step 3: Cross multiply
    14,567.99x = 20,104.88 × 8,903.81
  4. Step 4: Simplify right side
    14,567.99x = 179,009,886.55
  5. Step 5: Solve for x
    x = 179,009,886.55/14,567.99
  6. Step 6: Final answer
    x = 12,287.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.